Machine for use in making boxes



Feb.'27, 1940. A. L. ROSENMUND MACHINE FOR USE IN MAKING BOXES FiledOct. 15, 1938 4 Sheets-Sheet 1 INVENTOR.

Alfred L. Rosenmund.

an 3% W ATTORNEYS.

Feb. 27, 1940. A. L. ROSENMUND 2,191,634

MACHINE FOR USE IN MAKING BOXES Filed Oct. 15. 1938 4 snggsegzsneet 2 II l0 I0 I 2520 k 26 2% 20 25 Fig. 4;

T 20 2% l0 I0 26 '20 A/frea L. Rosenmund.

Y BY 6 t Fig. 5. PM

' ATTORNEYS.

4 Sheets-Sheet 3 r it /o 20 A. L. ROSENMUND mourns FOR USE IN MAKINGBOXES Filed Oct. 15, 1938 all! F eb. 27, 1940.

ATTORNEYS;

Feb. 27, 1940. -A. L.'ROSENMUND v MACHINE FOR USE IN MAKING BOXES 4Sheets-Sheet 4 Filed Oct. 15, 1938 Alfred L. Rosenmund.

A TTORNEYS.

Patented Feb. 27, 1940 I 1 UNITED, STAT MACHINE For. USE IN'MAKING BOXESAlfred L..'Rosenmund, Rockaway, N. J assignor to stapling Machines Co -acorporation of Delaware Applicationidctober 13, 1938, Serial No. 234,793

10 Claims.

This invention relates tomachines forequipping wired box parts withinterengageablefasteners and particularly to. improved means for formingand clinching theprong of such a fastener.

It is an object of the invention toprovide certain improvements inmachines of the type shown and described in United States Patents No..1,- 933,031, of October31, 1933, and No. 2,024,188, of

December 17, 1935.

It is a further objectto provide improved prongforming and"prong-clinching instrumentalities for machines of the type referredtogwmch. are

- adapted to facilitate the driving of the prong and to produce a betterclinch.

It is a further object to provide a mechanism that will,positivelyclinch the prong after, it is driven through aboxpartf Q Itis a'further object to provide prong-clinch- 'ing instrumentalitieswhichjare adapted to embed the clinched portion of the prong in the boxpart.

Other objects will be in part obvious and in part pointed outhereinafter.

In the drawings? I v j I Figure 1 is a partialside elevation," partly insection, of a machine embodying the invention.

Fig. 2 is an enlarged side elevation of the prongforming dies, showing aportion of wirewith the prong formed thereon. I

Fig. 3 is an enlarged. perspective view'jof one of the clinching unitspartially sectioned.

Fig. 4 is a. diagrammatic view of the wire+manipulating elements ofthemachine' which sever, the wire between box parts,form prongs on thesevered ends, bend the wires to form bights or loops, drive the prongsinto the box parts to perpetuate the, bights or loops, and clinch theprongs which are driven through the box parts.

In this view two wire-connected box parts are I shown in position to beoperated upon.

1 Fig. 5 is a similar view showingthe position of the wire-manipulatingelements after the wire connecting the two box part's'has been severedand prongs formed-on the ends of the severed wires. I

Fig. 6 is a similar view showing the position of the wire-manipulatingelements after thejprongs have beenswung over onto their respe parts toform the bights or loops. Fig. '7 is a similar view showing the posit1onof the parts after the prongs have been driven through the box parts andbefore'the clinching operation. I I

. Fig. 8 1's a similar view showing the position of t e. part sans! he rn s.llayqbeen. l n he ctive box Fig. 9 is an enlarged side elevation,partially sectioned, of one clinching unit, with the parts in theposition shown in Fig. 7. Inthis view the prong, as shown in full.lines, has'been' driven I through the box part. Theprong prior to the 5'driving operation is shown in dotted lines.

1 Fig. 10 is a similar view showing the position of the parts at thecompletion'of a clinching operation. y Fig. 11 is a perspective view ofa wirebound 10 box blank equipped with interengageable fasteners orbights ofthe'type supplied by the machine of this invention. In thisview one section of the box blank is in a raised position to show theunder surface 'of thejbox part with 15 the prong embedded therein.

Fig. 12' is a perspective view" of a completed box equipped withinterengageable.fasteners by the machine of this application, showingone of the fasteners'in an intermediate stage of interan engagement andthe other fasteners completely interengaged.

' There is illustrated in Figs. 11' and 12 one product of the machine ofthis application.

, Referring to Fig. 11, there is shown a wirebound box blank consistingof four separate sections of side material A and cleats B connectedtogether inioldable relationship by binding Wires C'which'are staple-dto theside material A and the cleats B. The wires C arestapled to the 3side material A and the cleats B in a wirebound box blank machine. Sucha machine is shown in United States Eatent No. 2,101,457, of December 7,1937. As the box blanks emerge from the box blank machine they areconnected by 35 the binding wires C, appropriate spaces being leftbetween successive box blanks to permit sev-' ering the wires andmanipulating the severed ends to provide bightsD, whichbights may beinterengaged to close the box, as shown in Fig. 12, 40

After the wire-connected box blanks leavev the box blank machine, theyarejfed into the ma: chine of this application and po'sitionedupon avertically movable table T, as illustrated in Fig. 1. When sopositioned, the space between the wire- 5 connected box blanks islocateddirectly above cutters I, prong-forming blocks, ,2, andbightforming spindles 3, and below. cutter actuator 4 carryingprong-rforming elements 5, and each' box blank is located beneath adriver 6. Pref erably, the machine of this application is operatedthrough a one-cycle clutch, and, asexplanned in Patents No. 1,933,031.and .No. 2,024,-

188, during one cycle of operation-[the YY several wire-manipulatingelements gothrough the successive operations shown diagrammatically inFigs. 41:0 8.

Referring to Fig. 4, there is shown the first partially rotated toswingthe prongs P over onto. their respective box parts X, asillustrated in' Fig. 6. Referring to Fig. '7, the drivers 6 descend,driving the prongs P through the box parts X. The construction andoperation of the wiremanipulating mechanisms hereinbefore referred toare shown and described in said Patents No. 1,933,031 and No. 2,024,188and need not be described in detail herein.

Continued descent of the drivers 6 will cause the clinching mechanism ofthis application to clinch the prongs P on the under surface of sidematerial A in a. manner presently to be described.

Referring to Fig. 2, there is shown an enlarged view of a prong-formingelement 5 completing a prong P by bending an end of the severed wire Cabout the prong-forming block 2. To attain this desired shape of prong Pthere is provided a bevel-shapedprojection 8 on the upper surface ofprong-forming block 2, over which the wire is shaped by a recess 1located in the under surface of prong-forming element 5. As the wire 0is bent about the bevel-shaped projection 8 it is permitted to flare orbulge upwardly into the recess 1, resulting in a prong with a shapequite similar to the shape of a staple. This form of prong P is verydesirable since it provides more rigidity and more contact surface fordriving. Heretofore there has been considerable difiiculty in'drivingthe prong P through hard wood without buckling or breaking, due mostlyto the sharp angle at which it was formed; This improved shape of prongP helps to eliminate this difficulty and to insure a complete andsatisfactory clinch.

Fig. '3 shows one clinching unit embodying the invention. While only oneunit is shown and describedin detail; it will be understood that aclincher unit is provided for each wire with a.

' the prong P may be driven. Projecting downwardly from the plate 9 is afork-shaped lug l4 having at the lower extremity of each leg of the forka downwardly-extending bevel surface l5 adjacent to and coinciding witha bevel surface I6 on a horizontally movable block l1. Fixed to andextending upwardly from block I? is a clincher block l3 having a knurledclinching surface l9. Clincher I8 is slidably located between the legsof fork-shaped lug l4 and extends into the lower part of opening l3 ofplate 9. The top knurled surface I9 of clincher block [8 lies asufficient distance below the top of plate 9 to permit the prong to bedriven through the box part a considerable distance before contactingthe clinching'surface H). To guide movable block I1 and clincher- [8 intheir horizontal movement, there is provided a pair of rods 20srelatively Plate Sis provided with an spaced in clincher body 10. oneend of each rod 20 is secured in movable block IT. The other end of eachrod 20 is secured in a crossbar 2| and can reciprocate horizontally inbearings 22 in clincher body Ill. A stud 23 located midway between rods20 having one end permanently secured in clincher body Ill and the otherend loosely mounted in bearing 24 of crossbar 2!, carriesv a spring 25interposed between the clincher body ill and the inner surface ofcrossbar 2| to return the movable block I? and clincher block 18. totheir initial position. The clinching units are adjustably secured to amachine casting by a bolt 26 and an elongated slot 21.

The operation of the clincher mechanism is best shown in'Figs. 9 and 10.In Fig. 9 there is shown a box part X positioned on plate 9 for aclinching operation. As illustrated in broken lines, the" prong P isswung over onto the side material A; forming thebight D with the prong Ppositioned to be driven through. the box part and clinched. When thedriver descends in the manner described in said Patent No. 2,024,188,the prong P is driven through the side material A and into the openingE3 of plate 9, the point of prong P preferably being slightly above theknurled surface IQ of clincher block 18. when the prong P' is completelydriven. During thisdriving operation the plate 9; is yieldinglysupported above clincher block I8 by springs it which are of sufficientstiffness to resist thethrust of the driver fijwhile it is driving theprong through the box part but will yield to; further descent of thedriver 6" when the driver contacts the box part. Continued descent ofdriver 5 after contacting the box part, forces plate 9 downwardlyagainst the a ction of springs H and forces the endv of the prong P intocontact with surface 19 of clincher block i8. As thepoint offprong Pcontacts the knurled surface IQ of clincher it the beveled surface l5 oflug Hi is forced down against the beveled surface it of movable blockl1, causing the block l1 andfclincher block l8 to move in the directionindicatedby arrows,-Ii. e.-,

to the left inFig. 10. This horizontal movement of the clincher block laplus the continuing downward movement of the prong bends, the

prong-and embeds it in the under surfaceof the 1 box part, as shown inFig. l0.v

It W l be noted that. the prong is completely or almost completelydriven through the box part before, contacting the clincher block andbefore being bent to clinch the prong in the under surface of the boxpart. It will be noted also that during a clinching operation theclincher block moves with" the prong in "the direction of the Such, anoperation tends to reduce bucklingof the prong during a drivingoperation and to insure a uniform and dependable clinch.

The expression. stapie like prong as used in the claims is intended tocover a prong having substantially the relationship tov the body of thewire, shown in Fig.2.

It will be understood that the invention is not i to belimited to. thespecific embodiment, shown forpurposesof, illustration and. that, all ofthe inventive features need not be used, conjointly.

port for the box-part having an-open-ing through which the wire end maybe driven, a clincher block located beneath the opening in the supportand mounted to move at substantially a right angle to the movement ofthe support, and means to move the clincher block during movement of thesupport.

2. In a machine having instrumentalities for forming a bight on a wiresecured to a box part port and mounted to move at substantially a rightangle to the movement of the support, and means to move the clincherblock in accordance with movement of the support.

, 3. In a machine having instrumentalities for forming a bight on a wiresecured to a box part and driving the end of the wire through the boxpart to perpetuate the bight, mechanism for clinching the endof the Wirewhich is driven through the box part comprising a yielding support forthe box part having an opening through which the wire end may be driven,a clincher block located beneath the opening in the support and mountedto move at substantially a right angle to the movement of the support,and means actuated by movement of the support to move the clincherblock.

4. In a machine having instrumentalities for forming a bight on a wiresecured to a box part and driving the end of the wire through the boxpart to perpetuate the bight, mechanism for clinching the end of thewire which is driven through the box part comprising a yielding supportfor the box part, a clincher block located beneath the support andmounted to move at substantially a right angle to the movement of thesupport, and means to move the clincher block during movement of thesupport.

5. In a machine having instrumentalities for forming a bight on a wiresecured to a box part and driving the end of the wire through the boxpart to perpetuate the bight, mechanism for clinching the end of thewire which is driven through the box part comprising a verticallymovable support'for the box part, a horizontally movable clincher blocklocated beneath the support, and means to move the clincher blockhorizontally during, vertical movement of the support.

6. Clinching mechanism according to claim 1, in which th yieldingsupport for the box part is of such character as to resist movement ofthe support during the driving of the wire end through the box part andthen yield to an increased pressure.

7. Mechanism for clinching the end of a flexible binder driven through abox part comprising a yielding supp rt for a box part movable in onedirection, a clincher block movable at substantially a right angle tothe direction of movement of the support, and means automatically tomove the clincher block during movement of the support.

8. Mechanism for clinching the end of a flexible binder driven through abox part comprising a yielding support for a box part movable in ment ofthe support.

10. Clinching mechanism according to claim 9, in which means areprovided to resist movement of the support during the driving of theWire end therethrough and to permit movement of the support upon theapplication of increased pressure. I

ALFRED L. ROSENMUND.

